Figure 3
From: Excess heat production in the redox couple reaction of ferricyanide and ferrocyanide
Measurement of excess heat production by c-type MHDE. (a) MHD flow and ionic vacancies created by c-type MHDE. a, Cathode; b, Anode; c, Streamlines; I, Electrolytic current; B, Magnetic flux density; blue circle, Negative vacancy; red circle, Positive vacancy. (b) MHD flow pattern around a thermal sensor. (1) Low current range (two-temperature-phase state); (2) Middle current range (quasi-isothermal state); (3) High current range (isothermal state). S, thermal sensor; \(\ell\), size of the thermal sensor; \(\delta\), thickness of the low-temperature phase. \(\Delta T_{l}^{*}\), temperature difference of the low-temperature phase; \(\Delta T_{h}^{*}\), temperature difference of the high-temperature phase; \(\Delta T_{av}^{*}\), average temperature difference of the mixed solution; \({\Delta }T^{*}\), temperature difference of the unified solution under a isothermal condition. (c) Schematic of the locus of \(R_{J} \left( I \right)\) vs. \(x\). (1) Low current range; (2) Middle current range; (3) High current range. \(C_{sys}\), calorimeter constant in the middle current range; \(C_{sys}^{*}\), calorimeter constant in the high current range.
